Salesforce JavaScript-Developer-I Questions & Answers - in .pdf
- Total Q&A: 149
- Update: Jul 25, 2026
- Price: $59.99
- Vendor: Salesforce
- Exam Code: JavaScript-Developer-I
- Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
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Salesforce JavaScript-Developer-I Q&A - Testing Engine
- Total Q&A: 149
- Update: Jul 25, 2026
- Price: $59.99
- Vendor: Salesforce
- Exam Code: JavaScript-Developer-I
- Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
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Salesforce JavaScript-Developer-I Exam Overview:
| Certification Vendor: | Salesforce |
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | JS-Dev-001 |
| Certificate Validity Period: | 1 year (maintenance required via Salesforce certification maintenance modules) |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Duration: | 105 minutes |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Exam Price: | USD 200 (may vary by region/tax) |
| Passing Score: | 65% |
| Related Certifications: | Salesforce Certified Platform Developer I Salesforce Certified Platform App Builder Salesforce Certified JavaScript Developer I |
| Recommended Training: | Salesforce Trailhead JavaScript Developer I Prep Salesforce Developer Learning Paths |
| Exam Registration: | Salesforce Certification Registration (Webassessor) Salesforce Credentials Page |
| Sample Questions: | Salesforce JavaScript-Developer-I Sample Questions |
| Exam Way: | Online proctored or onsite testing via Kryterion Webassessor |
| Pre Condition: | No formal prerequisites, but familiarity with JavaScript and Salesforce platform development is strongly recommended. |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/javascriptdeveloper1 |
Benefits in Obtaining Salesforce JavaScript-Developer-I Certification
With the introduction of the Lightning Experience by Salesforce, it is possible to develop cool, looking applications for a wide range of tasks. Admins have been able to create beautiful pages for their objects more than ever, with an interface entirely tailored for each user.For developers, the same application has never before been possible for Salesforce developers to create applications that stretch well beyond Salesforce's declarative features. It's all achieved with the use of a JavaScript application for Lightning & Lightning Web components.
The certification for JavaScript Developer I has just been released and fills a large gap in the certification list for Salesforce. Salesforce Developers who want to prove their Lightning skills, but also new entrants into the Salesforce community, are certified to demonstrate that they know what is relevant. A typical Salesforce 60 multi-choice test is split into two parts and is influenced by a super badge (Similar to Developer II certification).
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Who should take the Salesforce JavaScript-Developer-I Exam
This course is designed for Javascript developers starting on the Salesforce platform who require programming customizations on front-end and back-end. There are no prerequisites for Salesforce JavaScript Developer I Exam. Typical job roles that align to the Salesforce Certified JavaScript Developer I are as follows:
- Support engineer
- Full stack developer
- UI/UX Engineer
- Software/backend developer
- Salesforce developer
- JavaScript programmer
- Technical Product Manager
- Web application developer
- Technical Project Manager
- Front end developer
How to book the Salesforce JavaScript-Developer-I Exam
There are the following steps for registering the Salesforce JavaScript Developer I exam. Step 1: Visit Salesforce Exam Registration Step 2: Signup/Login to Salesforce account Step 4: Select Date, time and confirm with the payment method
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| JavaScript Language Fundamentals | - ES6+ syntax and features - Data types, variables, and operators - Functions, scope, and closures |
| Salesforce Platform Integration | - Calling Apex methods from JavaScript - Lightning Web Components (LWC) JavaScript usage - Security considerations in Salesforce JavaScript |
| Testing and Debugging | - Debugging techniques and tools - Unit testing principles |
| Browser and DOM Interaction | - Event handling and propagation - Browser APIs (fetch, storage, timers) - DOM manipulation and traversal |
| Asynchronous JavaScript | - Promises and async/await - Error handling in async workflows - Event loop and concurrency model |
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